Privacy Policy and Important Notices
Updated: Monday, 15-Dec-2008 16:03:12 EST
Description: The Read and Profile Widget provides a bi-directional location function along with a variable-sized box-area data viewing capability. In addition, statistics are performed on the box-area selected (in terms of both raw data and geo-physical data values). This function also allows the capabilities of showing all the bits' on/off status of the pixel data and graphically marking point locations on the graphics plane with a cross symbol. The read function can be activated by selecting Functions->Read and Profile in the Display Window Widget.
Note: For a smaller, simpler uni-directional point location function and single-point data view function which is concurrently active for the display window as well as the zoom window, see Functions->Cursor Position in the Display Window Widget.
Input/output items:
| Color to mark the cursor | The graphics palette color index (1 to 7) used to mark the position on the graphics plane with the cross symbol. | ||||||||||||||
| Pixel/Line | The pixel and line number of the point, with the upper left-hand corner of the image being pixel/line (1,1). These fields can be both input and output fields. They update as the software cursor is moved across the display image. However you can input pixel/line locations into these fields, press the Move to pixel/line button and the cursor will move to the specified location within the display window. | ||||||||||||||
| Lat/Lon | The latitude/longitude values at the cursor location. These fields can be both input and output fields. They update as the software cursor is moved across the display image. However, you can input lat/lon locations into these fields, press the Move to lat/lon button and the cursor will move to the specified location within the display window. For data which do not contain navigation information, this will appear as -999.9, -999.9. | ||||||||||||||
| Options for box data display |
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Action items:
| Mouse movement in the virtual mouse pad | In order to move the software cursor within the display image, drag the hardware cursor around in the black square window. Think of the black square window as a "virtual mouse pad". |
| Up, Down, Left, Right | These buttons provide the capability of moving the cursor by one pixel in any direction in the display image. |
| Middle mouse button | Clicking the middle mouse button will cause the cursor to move to the center of the viewable display window. |
| Right mouse button | Clicking the right mouse button will cause a graphics mark to be placed on the image at the cursor location. (Same as pressing button Mark cursor location). |
| Output box data | Print the data in the area around the software cursor using Box size dimensions. The data within the specified box area will be displayed in the SeaDAS Display Text Information Widget in both raw band data and geo-physical band data form. The center-point coordinate is printed along with statistical information such as minimum, maximum value, mean, variance and standard deviation. |
| Mark cursor location | Mark the current location of the cursor on the graphics plane with a cross symbol, using the graphics color specified in Color to mark the cursor. Clicking the right mouse button will also mark the current location. |
| Move to pixel/line | Move the cursor in the display image to the pixel/line coordinate specified in the Pixel/line fields. |
| Move to lat/lon | Move the cursor in the display image to the lat/lon coordinate specified in the Lat/Lon fields. |
| Plot row profile | Plot the row profile in a SeaDAS plot window. Plot window provides postscript and PNG output options. |
| Plot column profile | Plot the column profile in a SeaDAS plot window. The plot window provides postscript and PNG output options. |
| Output profile data | Print the profile data in the SeaDAS Display Text Information Widget. |
| Profile plot setup | Open the Profile Plot Setup Widget for setting the profile plot options. |
| Pixel bit data display | Open the Pixel Bit Display Widget for showing the bits' on/off status for the pixel value on the current cursor postion. |
| Quit | Destroy the Read and Profile Widget. |
| Help | Show on-line documentation in HTML viewer. |
Description: This widget provides options for the user to change the default profile plot.
Option items:
| Data source | Toggle button to select the Raw or Geophysical data units for the profile plot. |
| Interactive mode | Toggle button to turn on/off the interactive profile plot capability. If the mode is on, the profile plot will be updated automatically when the cursor moves to a new location, otherwise, the profile plot will be updated only when the Plot row profile or Plot column profile button is pressed. |
| Plot data with Log scaling | Toggle button to decide if the logarithmic scaling is applied to the profile plot. |
| Display cursor position | Toggle button to decide if the cursor position will be displayed on the lower left corner of the profile plot window. |
| Initial window size | The initial window size to be used for the profile plot. Once the window is displayed, it may be adjusted dynamically by dragging the mouse on any boundary of the window. |
| Data range for the plot | The minimum and maximum range to be used for the profile plot. |
Action items:
| Parameters for general graphics | Open the General Graphics Setup Widget default setups for the profile plot. |
| Quit | Close the Profile Plot Setup Widget. |
Description: This widget displays the bits' on/off status of the pixel value on the current cursor position. Depending on the image data, the pixel value may have 8 bits (Byte), 16 bits (Integer*2), or 32 bits (Integer*4 or Float). The titles will be shown as sensitive for bits on (1) and insensitive for bits off (0) of the pixel data.
Action items:
| Title option | Select the title to be displayed for the corresponding bits of the pixel data. All of the titles (Default, SeaWiFS L2 Flags, OCTS L2 Flags, Modis L2 Flags, Modis L2A Flags, Modis L2B Flags, Modis 28L2 Flags, Modis Common Flags, User Define 1, User Define 2) are defined in the $SEADAS/config/seadas_function.opt file. The user can modify the file to redefine the titles as desired. |
| Quit | Close the Pixel Bit Display Widget. |
Privacy Policy and Important Notices
Updated: Monday, 15-Dec-2008 16:03:12 EST